Dumping-wagon.



M. YosHINo & o'. N. EDGE.

DUMPING WAGON.

f 'ym i@ M. YOSHINO & C. N. EDGE.

DUMPING WAGON.

APPLICATION FILED JULY 7,1910.

1,018,469. Patented Feb. 27, 1912.

4 SHEETS-SHEET 2.

CDLUMBIA PLANDGRAPI-i Co.,w^sHlNGToN, D. C.

1,018,469. m' 191' Patented Feb.27,1912.

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M. YosHINo & C. N. EDGE.

DUMPING WAGON.

APPLIOATION FILED JULY'7, 1910.

1,018,469. Patented Feb.27,1912.

4 SHEETS-SHEET 4.

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UNITED STATES PATENT OFFICE.

MATASHIRO YOSHINO, 0F DAIREN, MANCHUR-IA, AND CHARLES NOEL EDGE, OFSHANGHAI, CHINA; -SAID EDGE ASSIGNOR T0 SAID YOSI-IINO.

DUMPING-WAGON.

-To all whom it may concern:

Be it known that we, MATAsHIRo YosHINo. a subject of the Emperor ofJapan, and CHARLES NOEL EDGE, a subject of the King of Great Britain,and residents of Dairen, Manchuria, and Shanghai, China, respectively,have invented certain new and useful Improvements in Dumping-Wagons, ofwhich the following is a specication..

This invention comprises improvements in and relating to dumping wagonsand has more particularly for its object to provide improved means foractuating the dumping doors of such wagons so as to facilitate dischargeand also to provide means for locking said doors to insure safeconveyance of the contents of the wagon.

In accordance with the invention the dumping doors are hinged on bothsides of a central longitudinal member in the bottom of the wagon andare connected at their outer edges by links t0 threaded rods workingthrough threaded worm wheels forming nuts mounted on the wagon sides.vThe worm wheels are driven from common shafts and elevate the screwedrods to close the doors or lower them to open the doors for dumping thecontents of the wagon. A locking gear for locking certain of the doorssimultaneously and all in turn is provided.

In order that the invention may be thoroughly understood and easilycarried into practice we have appended hereunto four sheets ofexplanatory drawings.

Figure l, is a side elevation of a bogie dumping wagon with theinvention applied. one half only of the wagon being shown forconvenience of illustration but as both halves are identical this willsuffice. Fig. 2, is a plan view of Fig. 1. Fig. 3, is an end elevation,the right hand side being shown in section. Fig. 4, is a detail view insection of one of the threaded worm wheels and its worm. Fig. 5,illustrates on a larger scale the locking gear. Fig. 6, is a section online 6 6 of Fig. 5. Fig. 7, diagrammatically illustrates the arrangementof one of the shafts actuating the locking gear.

The floor of the wagon is broken up into eight doors a (or othersuitable number) which hinge at a central longitudinal member b and maybe drawn up to'a horizontal position to form a supporting floor for thewagon or lowered to an inclined position for dumping. In the exampleillustrated the Specification of Letters Patent.

Application filed July 7, 1910.

Patented Feb. 27, 1912. Serial No. 570,849.

lifting devices are connected to the center of a member c forming theouter edge 0f each door. The lifting means comprise in each case a linkZ connected to a screw rod e. The rod e passes through a correspondinglytapped hole in a worm wheel f suitably mounted in bearings to the sideof the wagon. The screw rod chas a limiting washer and nut at its upperend and as the worm wheel f is rotated, it acts upon the rod in themanner of an anchored nut causing the vertical movement of the rod in anupward or downward direction according to the direction of rotation ofthe wheel. It will be understood that such a screw rod e and wheel f arearranged at each of the doors of the wagon so that upon the rotation ofsay two of the wheels f the corresponding rods e will be raised orlowered and the same number of doors closedor opened. To rotate the wormwheels longitudinal shafts g carrying worms g1 are employed and theseare disposed and arranged to connect up the desired number of doors forsimultaneous operation.

In the example illustrated the doors a are connected in pairs and areoperated by the side shafts g. The shafts g comprise four lengths eachrotated by a hand wheel /z or other suitable means, one pair of doorsbeing connected with each length of shafting. Thus one wheel L and shaftg will open or close two doors and by operation of a wheel 7L at eachcorner of the wagon all the eight doors are operated.

By reference to Fig. l, one shaft g will be seen extending for half thelength of the wagon. This shaft drives by worms two rods e (one is shownon the drawing eX- posed and one cased in) and operates two doors a arepresented in dotted lines Fig. 2. The other three shafts g areidentical in arrangement and as stated are driven from the corners ofthe wagon from the wheel z.; at Fig. 2, two shafts and wheels are seen.In this illustrated example gearing is introduced between the handwheels h and the shafts to give a quicker operation of the doors. Eachwheel 7L has a ratchet wheel z' engaged by a pawl 7' which preventsaccidental operation of the wheel.

To lock the doors in the closed position and prevent undue strain comingon the closing gear, locking devices are provided which may similarly beoperated from hand wheels k at each corner of the wagon. For thispurpose shafts Z run along each side of the wagon near the bottompreferably continuing, as in the case of the closing and opening gear,as far as a complete pair of doors as here shown half the length of thewagon. The shafts from each end are arranged in suitable bearings andmeet at the center of the wagon and each shaft (four in all) may berotated by a hand wheel 76 at a corner of the wagon. The outer edge ofeach door L as previously stated, is strengthened by a suitable sectionmember c and at each end of this member in the case of each door a hookpart m is secured. On the shafts Z threaded parts are provided whichpass through tapped bushings in wedge blocks n and as the shafts Z arerotated when the doors are closed the wedge blocks are caused to rununder the hook pieces and firmly draw the doors up and lock them in theclosed position. In the case of each end door one threaded part isprovided on the shaft and one wedge block n is used but in the caseswhere two doors, side by side, have to be secured, oppositely threadedparts are formed on the shafts and two wedge blocks n are arranged tocoact therewith. Then as the shafts are rotated in one direction the twoblocks at each of such points are moved toward or away from each otherthus passing under the hooks or away from them to lock or unfasten thedoors as desired. This will be more clearly seen at Figs. 5 and 6 wherethe wedge blocks n will be seen to have wedge shape projections o whichproject into the path of the hooks m and as each block is moved byrotation of a shaft Z, with its threaded part on which the tapped body nof the wedge block is disposed, the wedge projection is drawn under thehook m or away fromv it according to the direction of rotation of theshaft Z. The arrangement of these locking blocks at the adjacent edge oftwo doors will be clearly understood from Fig. 5, where two oppositelythreaded parts, two blocks and two hooks are shown.

In the arrangement shown there are two fastenings for each door, that issixteen in all and each of the four shafts is thus formed with fourthreaded parts to carry four wedge blocks. The shafts may each be inlengths convenient for manufacture and may be coupled up where desired;such a shaft is shown in Fig. T.

In operation, supposing the wagon to be filled with coal or othermaterial, the doors are of course all closed and locked by thefastenings described, thus forming a hori- Zontal flooring. Zhen it isdesired to discharge the contents of the wagon one of the wheels L isrotated to unlock two doors and the corresponding wheel ZL is rotatedtov drive the two worm wheels f connected to the particular shaft in adirection causing the lowering of the two rods e, thus opening the doorsas shown at Fig. 3, and dump ing the contents. If it is desired todischarge all the contents of the wagon the remaining doors aresimilarly opened in turn from the controls at the other corners of thewagon.

lNhat we claim then is l. In dumping wagons, the discharge apparatuscomprising hinged doors in the floor connected by hinged links tothreaded rods which pass through driven nuts secured in bearings on thesides of the wagon, the nuts being driven by means carried by sideshafts rotatable from hand wheels or like means.

2. In dumping cars, the combination with a pivotally mounted door, of athreaded rod operatively connected to the free end of said door, a nutfor said rod retained against lon gitudinal movement therewith, andmeans for actuating said nut for opening or closing the said door.

In testimony whereof we atliX our signa Atures in presence of witnesses.

MATASHIRO YOSHINO. CHARLES NOEL EDGE. Zitnesses F. GILBERT BBEKELL, J.BEAUMONT PnnoIvAL, KATHLEEN M. THOMPSON, ERNEST Hamme.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents,

- Washington, D. C.

